Science Podcast - Animal culture, general relativity, TB in North Korea, and more (26 April 2013)
![Science Magazine Podcast show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/030/790/small/science-magazine-podcast.jpg)
Summary: Luke Rendell discusses evidence for the cultural exchange of behavior in whales; John Antoniadis explains how an extreme pulsar validates general relativity; Richard Stone describes the state of TB treatment in North Korea; and more.